UNI-MB - logo
UMNIK - logo
 
E-viri
Recenzirano Odprti dostop
  • Evidence for Simultaneous P...
    Adams, M; Adams, T; Alton, A; Avila, C; Baringer, P; Bazterra, V; Begalli, M; Beri, S B; Bertram, I; Boehnlein, A; Boline, D; Brock, R; Brown, D; Burdin, S; Buszello, C P; Camacho-Pérez, E; Casey, B C K; Caughron, S; Claes, D; Cooper, W E; de Jong, S J; De La Cruz-Burelo, E; Ding, P F; Duperrin, A; Ellison, J; Elvira, V D; Evdokimov, A; Evdokimov, V N; Fauré, A; Filthaut, F; Garbincius, P H; García-González, J A; Gerber, C E; Ginther, G; Greder, S; Grivaz, J-F; Gutierrez, P; Han, L; Hauptman, J M; Hensel, C; Hohlfeld, M; Holzbauer, J L; Hubacek, Z; Illingworth, R; Jabeen, S; Jaffré, M; Jeong, M S; Johns, K; Khalatyan, N; Kohli, J M; Kumar, A; Kupco, A; Lee, W M; Li, H; Lincoln, D; Lipaev, V V; Liu, Y; Lokajicek, M; Maciel, A K A; McCarthy, R; McGivern, C L; Meijer, M M; Menezes, D; Nagy, E; Nunnemann, T; Osta, J; Partridge, R; Petridis, K; Petrillo, G; Prewitt, M; Rubinov, P; Sanders, M P; Santos, A S; Scanlon, T; Schott, M; Shabalina, E; Shaw, S; Snyder, S; Stark, J; Strauss, M; Titov, M; Tuchming, B; Vertogradov, L S; Verzocchi, M; Vesterinen, M; Vilanova, D; Vokac, P; Wahl, H D; Wang, M H L S; Watts, G; Welty-Rieger, L; Wilson, G W; Wobisch, M; Wood, D R; Xie, Y; Yamada, R; Ye, W; Yu, J M; Zhu, J; Zielinski, M

    Physical review letters, 2016-Feb-26, Letnik: 116, Številka: 8
    Journal Article

    We report evidence for the simultaneous production of J/ψ and ϒ mesons in 8.1  fb^{-1} of data collected at sqrts=1.96  TeV by the D0 experiment at the Fermilab ppover ¯ Tevatron Collider. Events with these characteristics are expected to be produced predominantly by gluon-gluon interactions. In this analysis, we extract the effective cross section characterizing the initial parton spatial distribution, σ_{eff}=2.2±0.7(stat)±0.9(syst)  mb.